Effect of some factors on electrodeposition of nickel-copper alloy from pyrophosphate-tetraborate bath

✍ Scribed by Masami Ishikawa; Hidehiko Enomoto; Masao Matsuoka; Chiaki Iwakura

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 555 KB
• Volume: 40
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(95)00084-r

✦ Synopsis

Effects of bath compositions

and operating conditions on the electrodeposition of nickelcopper alloy from a pyrophosphate-tetraborate bath have been studied. The composition of nickelcopper alloy was influenced by pyrophosphate concentration, pH of the bath, metal ion ratio and citrate ions in the bath. Pyrophosphate ions facilitate the codeposition of nickel and copper, but their excess inhibits the nickel deposition. The nickel deposition was also inhibited by increasing the concentration of copper and citrate ions.